| 摘要 |
PROBLEM TO BE SOLVED: To provide a filament non woven fabric excellent in heat resistance, quality suitable as a material for industrial use. SOLUTION: This non woven fabric consists of a conjugate filament comprising polyethylene terephthalate as a core component, and a polyester A satisfying the following (1)-(3) requirements, as a skin component. (1) the acid component is mainly consisting of terephthalic acid and/or isophthalic acid. (2) At least 80mol.% of the glycol component is neopentyl glycol. (3) The intrinsic viscosity is >=0.50. The weight ratio (conjugate ratio) of core component to skin component, in the conjugate filament, is 30/70-70/30. |
